package org.libsdl.app;

import android.annotation.SuppressLint;
import android.app.*;
import android.content.*;
import android.view.*;
import android.os.*;
import android.util.Log;
import android.media.*;


/**
    SDL Activity
*/
@SuppressLint("NewApi")
public class SDLActivity extends Activity {

    // Main components
    private static SDLActivity mSingleton;
    private static SDLSurface mSurface;
    
    public static String screenWidth,screenHeight;
    public static String ip,port,pass;

    // Audio
    private static Thread mAudioThread;
    private static AudioTrack mAudioTrack;

    // Load the .so
    static {
        System.loadLibrary("SDL");
        //System.loadLibrary("SDL_image");
        //System.loadLibrary("SDL_mixer");
        //System.loadLibrary("SDL_ttf");
        System.loadLibrary("main");
    }

    // Setup
    protected void onCreate(Bundle savedInstanceState) {
        //Log.v("SDL", "onCreate()");
        super.onCreate(savedInstanceState);
        
        Intent intent = this.getIntent();
        
        SDLActivity.ip = intent.getStringExtra("ip");
        SDLActivity.port = intent.getStringExtra("port");
        SDLActivity.pass = intent.getStringExtra("pass");
        
        WindowManager windowManager = getWindowManager();
        Display display = windowManager.getDefaultDisplay();
        SDLActivity.screenWidth  = String.valueOf(display.getWidth());
        SDLActivity.screenHeight = String.valueOf(display.getHeight());
        
        Log.i("ip : ", "" + ip);
        Log.i("port : ", "" + port);
        Log.i("pass : ", "" + pass);
        Log.i("screenWidth : ", "" + screenWidth);
        Log.i("screenHeight : ", "" + screenHeight);
        
        // So we can call stuff from static callbacks
        mSingleton = this;

        // Set up the surface
        mSurface = new SDLSurface(getApplication());
        setContentView(mSurface);
        SurfaceHolder holder = mSurface.getHolder();
        holder.setType(SurfaceHolder.SURFACE_TYPE_GPU);
    }

    // Events
    protected void onPause() {
        //Log.v("SDL", "onPause()");
        super.onPause();
    }

    protected void onResume() {
        //Log.v("SDL", "onResume()");
        super.onResume();
    }

    // Messages from the SDLMain thread
    static int COMMAND_CHANGE_TITLE = 1;

    // Handler for the messages
    Handler commandHandler = new Handler() {
        public void handleMessage(Message msg) {
            if (msg.arg1 == COMMAND_CHANGE_TITLE) {
                setTitle((String)msg.obj);
            }
        }
    };

    // Send a message from the SDLMain thread
    void sendCommand(int command, Object data) {
        Message msg = commandHandler.obtainMessage();
        msg.arg1 = command;
        msg.obj = data;
        commandHandler.sendMessage(msg);
    }

    //public static int screenWidth,screenHeight;
    //public static String ip,port,pass;
    // C functions we call
    //public static native void nativeInit();
    public static native void nativeInit(String ip,String pass);
    public static native void nativeQuit();
    public static native void onNativeResize(int x, int y, int format);
    public static native void onNativeKeyDown(int keycode);
    public static native void onNativeKeyUp(int keycode);
    public static native void onNativeTouch(int touchDevId, int pointerFingerId,
                                            int action, float x, 
                                            float y, float p);
    public static native void onNativeAccel(float x, float y, float z);
    public static native void nativeRunAudioThread();


    // Java functions called from C

    public static boolean createGLContext(int majorVersion, int minorVersion) {
        return mSurface.initEGL(majorVersion, minorVersion);
    }

    public static void flipBuffers() {
        mSurface.flipEGL();
    }

    public static void setActivityTitle(String title) {
        // Called from SDLMain() thread and can't directly affect the view
        mSingleton.sendCommand(COMMAND_CHANGE_TITLE, title);
    }

    public static Context getContext() {
        return mSingleton;
    }

    // Audio
    private static Object buf;
    
    public static Object audioInit(int sampleRate, boolean is16Bit, boolean isStereo, int desiredFrames) {
        int channelConfig = isStereo ? AudioFormat.CHANNEL_CONFIGURATION_STEREO : AudioFormat.CHANNEL_CONFIGURATION_MONO;
        int audioFormat = is16Bit ? AudioFormat.ENCODING_PCM_16BIT : AudioFormat.ENCODING_PCM_8BIT;
        int frameSize = (isStereo ? 2 : 1) * (is16Bit ? 2 : 1);
        
        Log.v("SDL", "SDL audio: wanted " + (isStereo ? "stereo" : "mono") + " " + (is16Bit ? "16-bit" : "8-bit") + " " + ((float)sampleRate / 1000f) + "kHz, " + desiredFrames + " frames buffer");
        
        // Let the user pick a larger buffer if they really want -- but ye
        // gods they probably shouldn't, the minimums are horrifyingly high
        // latency already
        desiredFrames = Math.max(desiredFrames, (AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat) + frameSize - 1) / frameSize);
        
        mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate,
                channelConfig, audioFormat, desiredFrames * frameSize, AudioTrack.MODE_STREAM);
        
        audioStartThread();
        
        Log.v("SDL", "SDL audio: got " + ((mAudioTrack.getChannelCount() >= 2) ? "stereo" : "mono") + " " + ((mAudioTrack.getAudioFormat() == AudioFormat.ENCODING_PCM_16BIT) ? "16-bit" : "8-bit") + " " + ((float)mAudioTrack.getSampleRate() / 1000f) + "kHz, " + desiredFrames + " frames buffer");
        
        if (is16Bit) {
            buf = new short[desiredFrames * (isStereo ? 2 : 1)];
        } else {
            buf = new byte[desiredFrames * (isStereo ? 2 : 1)]; 
        }
        return buf;
    }
    
    public static void audioStartThread() {
        mAudioThread = new Thread(new Runnable() {
            public void run() {
                mAudioTrack.play();
                nativeRunAudioThread();
            }
        });
        
        // I'd take REALTIME if I could get it!
        mAudioThread.setPriority(Thread.MAX_PRIORITY);
        mAudioThread.start();
    }
    
    public static void audioWriteShortBuffer(short[] buffer) {
        for (int i = 0; i < buffer.length; ) {
            int result = mAudioTrack.write(buffer, i, buffer.length - i);
            if (result > 0) {
                i += result;
            } else if (result == 0) {
                try {
                    Thread.sleep(1);
                } catch(InterruptedException e) {
                    // Nom nom
                }
            } else {
                Log.w("SDL", "SDL audio: error return from write(short)");
                return;
            }
        }
    }
    
    public static void audioWriteByteBuffer(byte[] buffer) {
        for (int i = 0; i < buffer.length; ) {
            int result = mAudioTrack.write(buffer, i, buffer.length - i);
            if (result > 0) {
                i += result;
            } else if (result == 0) {
                try {
                    Thread.sleep(1);
                } catch(InterruptedException e) {
                    // Nom nom
                }
            } else {
                Log.w("SDL", "SDL audio: error return from write(short)");
                return;
            }
        }
    }

    public static void audioQuit() {
        if (mAudioThread != null) {
            try {
                mAudioThread.join();
            } catch(Exception e) {
                Log.v("SDL", "Problem stopping audio thread: " + e);
            }
            mAudioThread = null;

            //Log.v("SDL", "Finished waiting for audio thread");
        }

        if (mAudioTrack != null) {
            mAudioTrack.stop();
            mAudioTrack = null;
        }
    }
}






